No, any male Catholic can be chosen. However, it has been hundreds of years since a non-cardinal was elected as pope.
Technically, the same as any other Cardinal, the election of a Pope is guided by the Holy Spirit, and normally any Cardinal is considered. This is NOT a popularity contest.
There are several Rites within the Church. The Latin Rite is the largest and most well-known, but each of the Rites are equal, they are all as ancient, and they all have equal standing. The Cardinal from any Rite may be elected as Pope, the Pope automatically, upon his election, may celebrate any of the Rites. So the short answer to your question is yes, Eastern Rite Cardinals are just as eligible for the papacy as the Latin Rite Cardinals.
Technically, a Catholic man might be elected to the Papacy. In the 20th century, the Popes may it a rule that only a priest could be elected, since then Pope John Paul II changed it to any Bishop. Realistically, it is usually a Cardinal.
Any Catholic male is eligible to be elected as pope. However, it would be a rare occurrence for a non-cardinal to be elected. The person chosen can be from any country, including the Americas. Pope Francis is the first pope elected from the Americas - Argentina in South America.
Pope Urban VI, pope from 1378 to 1389, was the last non-cardinal to be elected as pope. Since the conclave method of electing a pope began there have been 6 non-cardinals elected . Actually, the election of Pope Celestine V was the last non-conclave election and Celestine V was a priest who was elected to end a stalemate that had gone on for over 2 years. He did not want the position and resigned a few months later. Prior to the conclave method of electing a pope there were a number of non-cardinal popes.
Any male Catholic can be chosen to be pope. However, it has been hundreds of years since a non-cardinal was elected as pope. There are no nominations. The cardinals simply cast a vote for their favorite. The top voter getters are then subjected to more voting until one cardinal emerges with a 2/3 majority.
There are no formal requirements other than the candidate be a Catholic male. In theory, one doesn't even have to be a Cardinal (Or a priest!) to be elected Pope. In practice however, this has not occurred since 1379. There are INFORMAL requirements...unwritten rules if you will, for being elected Pope. 1. RANK: One must be a Cardinal to be elected Pope. 2. AGE: There are no formal age requirements for being elected Pope, but keep in mind that Cardinals are RARELY appointed before age 50. The youngest Cardinal presently serving is 57. Cardinals 80 and over cannot vote for Pope, and no one over 79 has EVER been elected Pope. The window of opportunity, therefore, is from one's late 50's to one's late 70's. Cardinals in their 60's are considered to be the ideal age for election. 3. LANGUAGES: The person who would be Pope must speak at least 3 languages: Latin, Italian, English, Spanish, French, Portuguese, and German are especially good for a potential Pope to know.
Any baptised man who is faithful to the Catholic Church can become a Pope. However, he gets elected by the College of Cardinals and is normally a Cardinal himself.
As per Canon Law, all male Catholics are potential candidates for pope. However, in practicality, only a cardinal is elected. It has been hundreds of years since a non-cardinal has been elected.
The man elected as pope does not have to be ordained. However, once he is elected as pope he must be ordained as a bishop before he can be installed as pope. An example is Pope Elect Stephen II. He was a layman who was elected as pope. Before he could be made a bishop, however, he died, just two days after his election. Therefore, having never been a bishop, he is not considered to have been a pope,
The College of Cardinals votes for the Pope by conclave in St. Peter'sBasilicain Rome. They are cut off from all outsidecommunicationand they must reach a 2/3 majority to select the Pope.This video in the related links below explains it all really well.